No WiFi or App Required - Works without internet or smartphones; just pair the doorbell with the indoor screen for instant use.HD Camera for Clear Visitor View - High-definition lens captures sharp footage, so you can clearly see who’s at your door without opening it.Indoor Display with 2-Way Audio - View visitors directly on the included screen and talk to them via two-way audio.Plug-and-Play Indoor Unit - The indoor screen can be powered by any standard phone charger for 24/7 continuous use.Easy Wireless Installation - Simple setup with no complex wiring, perfect for apartments, elderly homes, and remote areas. | Cluzine | | Wireless Video Doorbell with Indoor Screen, HD Camera, 2-Way Audio, No WiFi Needed | Best Buy